Online screen recorder
Record your screen, a window or a tab with sound and mic, no watermark.
- Instant
- Free
- Private (processed locally)
- No sign-up
Record your screen online for free, with sound
This online screen recorder captures your entire screen, a single window or a browser tab, with the computer sound and your microphone if you wish. There is nothing to install, no account to create and no watermark on the video: you get a WebM or MP4 file ready to share, edit or upload.
It is ideal for a quick tutorial, a bug report, a product demo or a message you would rather show than write. Everything runs locally in your browser: the video is encoded on your device and never sent anywhere, which also makes it suitable for confidential content.
-
Set the options
Pick “What to record”, the “Frame rate”, the “Video quality” and the “File format”. Then tick the sound to record (computer or tab sound, your voice through the microphone) and keep or untick the 3-second countdown.
-
Choose what to share
Click “Start recording”: the browser opens its sharing dialog. Select the screen, window or tab and, to capture sound, turn on the audio option in that dialog. If you ticked the microphone, allow access when the browser asks.
-
Record, pause, stop
After the countdown, the timer and red dot show that recording is on. Use “Pause” and “Resume” as needed, then “Stop” (the browser’s own “Stop sharing” button works too).
-
Watch and download
The video appears in the player with its duration, size, resolution and format. Click “Download” to save it (the file name includes the date and time), or “New recording” to record another take.
How the browser records your screen
The tool relies on two web standards. The Screen Capture API (getDisplayMedia) asks you which surface to share and returns a live video stream; you always choose in the browser’s own dialog, and a sharing indicator stays visible. The MediaRecorder API then compresses that stream in real time with your browser’s encoder (H.264, VP9 or VP8 for video, AAC or Opus for sound).
- Sound mixing: when both the computer sound and the microphone are captured, the Web Audio API merges them into a single track, so every player hears both.
- Bitrate: Light, Standard and High target 2.5, 5 and 10 Mbps, that is at most about 19, 37 and 72 MB per minute. A static screen compresses far better than a video playing full screen.
- 30 or 60 fps: 30 frames per second is enough for slides, code and web pages; 60 fps makes scrolling, animations and games smoother, but each frame gets fewer bits at the same bitrate.
- WebM duration fix: MediaRecorder writes WebM files without a total duration. As soon as the recording stops, the tool adds the missing
Durationelement to the file header, without re-encoding, so players show the length and allow seeking. - Session list: each take stays available below the player until you close the page, so you can compare, download or delete them.
Browser support: what can be recorded
| Browser | Can share | Tab sound | System sound | MP4 recording |
|---|---|---|---|---|
| Chrome, Edge on Windows | Screen, window, tab | Yes | Yes (entire screen) | Yes, recent versions |
| Chrome on ChromeOS | Screen, window, tab | Yes | Yes (entire screen) | Yes, recent versions |
| Chrome, Edge on macOS | Screen, window, tab | Yes | Recent versions (macOS 14.2+), otherwise share a tab | Yes, recent versions |
| Firefox (computer) | Screen, window | No | No | No (WebM) |
| Safari (Mac) | Screen, window | No | No | Yes |
| iPhone, iPad, Android | Not available | No | No | Built-in recorder |
Mobile browsers do not offer screen capture to websites. The format list in the tool only shows what your browser can actually record.
What can you use a screen recorder for?
- Tutorials and how-tos: walk through a procedure step by step with your voice, rather than writing a long email.
- Bug reports: record the exact steps that trigger a problem and send the video to support or to the developers.
- Demos and presentations: capture a product walkthrough, a slide deck with commentary or a design review to watch later.
- Online classes and meetings: keep a lesson, a webinar or a video call for your own notes, with the consent of the participants.
- Gameplay and creative clips: record a game in a browser tab or window at 60 fps, or the steps of a drawing or an edit.
Common problems and how to fix them
- Black screen or instant error on a Mac: allow your browser in System Settings > Privacy & Security > Screen & System Audio Recording (Screen Recording on older versions), then quit and reopen the browser.
- No sound in the video: the audio option was not turned on in the sharing dialog, or the shared surface provides no sound (depending on the browser, a window may carry none, and Firefox and Safari never capture screen sound). Share a tab, or the entire screen with system audio on Windows.
- Choppy video: choose 30 fps and the Standard quality, close heavy applications and record a window or a tab rather than a very high resolution screen.
- File too large: use the Light quality, record a window instead of the whole screen, and skip idle moments with Pause and Resume.
- Lost recording: takes are kept only while the page is open. Download each video before closing or reloading the tab; the page warns you if a take has not been downloaded.
Privacy: the capture, encoding and download happen entirely on your device; no image or sound is sent to a server, and nothing is kept after you close the page. Limits: screen capture requires a computer browser (Chrome, Edge, Firefox or Safari), sound capture depends on the browser and the system, and very long recordings are limited by your device’s memory and storage.
Frequently asked questions
Is this screen recorder really free, with no watermark or time limit?
Yes. There is no account, no watermark and no recording limit set by the tool: the only limit is your device’s memory and storage. At the Standard quality, one minute of video takes at most about 37 MB, so an hour takes a little over 2 GB.
Are my recordings uploaded to a server?
No. The capture, the encoding and the preview all happen in your browser through standard web APIs (Screen Capture and MediaRecorder). The video only exists in the page’s memory until you download it, and it disappears when you close the tab.
How do I record the sound of my computer?
Leave “Record computer or tab sound” ticked, then turn on the audio option in the browser’s sharing dialog. In Chrome and Edge, a tab can always share its own sound, and the entire screen can share system audio on Windows and ChromeOS. On a Mac, that option only appears in a recent version of Chrome on macOS 14.2 or later; otherwise, share the tab that plays the sound. Firefox and Safari cannot capture sound from the screen, but you can still add your voice with the microphone.
Can I record my voice and the screen at the same time?
Yes: tick “Record my voice (microphone)” before starting. Your voice is mixed with the computer sound into a single audio track, and a level meter shows that the microphone is picking you up. If you refuse microphone access, the screen recording continues without it.
WebM or MP4: which format should I choose?
Choose MP4 (H.264) when your browser offers it: it is the most widely supported video format (video editors, presentation software, phones). Both target the same bitrate, so file sizes are similar; WebM (VP9) often gives a sharper picture, plays in Chrome, Firefox, Edge and VLC, and is accepted by YouTube. Browsers write WebM files without a total duration, so this tool adds it as soon as the recording stops to keep the progress bar and seeking working.
Can I record the screen of an iPhone or Android phone?
Not from a website: mobile browsers do not let web pages capture the screen. Use the built-in recorder instead: Screen Recording in Control Center on iPhone and iPad, or Screen record in Quick Settings on Android (the name varies by brand). This tool works in Chrome, Edge, Firefox and Safari on a computer.